Diesel Particulate Matter
DPM
The fine soot expelled from diesel-burning engines (trucks, buses, ships, generators). Classified as a likely human carcinogen and a major contributor to pollution near highways and ports.
Related terms
Particulate Matter Microscopic solid particles or liquid droplets suspended in air, including dust, soot, and smoke. PM2.5 (fine particles) is small enough to enter the bloodstream through the lungs. Traffic Proximity Data Mapped data on high-volume roadways used to estimate residents' exposure to diesel particulate matter and nitrogen dioxide from freight and passenger vehicles. Criteria Pollutants The six common air pollutants regulated under NAAQS: ground-level ozone, particulate matter, carbon monoxide, lead, sulfur dioxide, and nitrogen dioxide.